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<title>历史数据</title>	
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<h2><a name="_Toc10558"><span lang=EN-US style='font-weight:normal'>3.7<span
style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span><span
style='font-family:黑体'>历史数据</span></a></h2>

<p class=MsoNormal style='text-indent:21.0pt'><span style='font-family:宋体'>历史数据管理模块对历史性能数据进行了管理。</span>
</p>

<p class=MsoListBullet><span lang=EN-US style='font-family:Wingdings'>u<span
style='font:7.0pt "Times New Roman"'>&nbsp; </span></span><span
style='font-family:宋体'>自动清理数据：</span></p>

<p class=MsoNormal style='text-indent:21.0pt'><span style='font-family:宋体'>历史数据保留期限默认</span><span
lang=EN-US>12</span><span style='font-family:宋体'>个月，最小精度为</span><span
lang=EN-US>1</span><span style='font-family:宋体'>个月，在保留期限输入“</span><span
lang=EN-US>0</span><span style='font-family:宋体'>”，代表除了当前月外的所有数据全部自动清理。在保留期限中输入“</span><span
lang=EN-US>1</span><span style='font-family:宋体'>”，代表只保留之前一个月的数据。系统每天</span><span
lang=EN-US>22</span><span style='font-family:宋体'>点自动根据条件判断是否进行数据清理。</span></p>

<p class=MsoNormal align=center style='text-align:center;page-break-after:avoid'><span
lang=EN-US><img border=0 width=553 height=229 id="图片 4"
src="index.files/image017.jpg"></span></p>

<p class=MsoCaption><span lang=EN-US>图10<span style='font:7.0pt "Times New Roman"'>&nbsp;
</span></span><span style='font-family:宋体'>历史数据</span></p>

<p class=MsoListBullet><span lang=EN-US style='font-family:Wingdings'>u<span
style='font:7.0pt "Times New Roman"'>&nbsp; </span></span><span
style='font-family:宋体'>立即清除历史数据：</span></p>

<p class=MsoNormal style='text-indent:21.0pt'><span style='font-family:宋体'>点击＜立即清除历史数据＞，弹出立即清除历史数据配置页面，可以通过手动选择需要清理的某个业务系统的历史数据，勾选业务系统，输入保留期限如“</span><span
lang=EN-US>0</span><span style='font-family:宋体'>”，点击＜确定＞，立即删除该业务系统除本月外的所有性能数据。</span></p>

<p class=MsoNormal align=center style='text-align:center;page-break-after:avoid'><span
lang=EN-US><img border=0 width=305 height=451 id="图片 17"
src="index.files/image018.jpg"></span></p>

<p class=MsoCaption><span lang=EN-US>图11<span style='font:7.0pt "Times New Roman"'>&nbsp;
</span></span><span style='font-family:宋体'>立即清理数据</span></p>

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